Numerical study on local scour characteristics around submarine pipelines in the Yellow River Delta silty sandy soil under waves and currents

Peng Yu; Ruigeng Hu; Jike Zhang; Qi Yang; Jieru Zhao; Lei Cao; Chenghao Zhu

doi:10.1002/dug2.12068

Deep Underground Science and Engineering ›› 2024, Vol. 3 ›› Issue (2) : 182-196. DOI: 10.1002/dug2.12068

RESEARCH ARTICLE

Numerical study on local scour characteristics around submarine pipelines in the Yellow River Delta silty sandy soil under waves and currents

Peng Yu¹^,² ,
Ruigeng Hu³ ,
Jike Zhang¹^,² ,
Qi Yang⁴^,⁵ ,
Jieru Zhao⁶ ,
Lei Cao¹^,² ,
Chenghao Zhu⁶

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Highlights

• Based on the renormalized group κ-ϵ turbulence model and Stokes fifthorder wave theory, a three-dimensional numerical model of currents and waves–submarine pipeline–silty sandy seabed was established for scouring.

• The reliability and accuracy of the numerical model were verified against experimental data measured from a self-built waveflow flume.

• Computational and experimental investigations were conducted on the local scour development and characteristics of submarine pipelines in the Yellow River Delta silty sandy seabed. The effects of different water depths, flow velocities, and pipeline suspension heights on the local scour characteristics of submarine pipelines were compared and analyzed.

Keywords

local scour / numerical simulation / submarine pipelines / Yellow River Delta

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Peng Yu, Ruigeng Hu, Jike Zhang, Qi Yang, Jieru Zhao, Lei Cao, Chenghao Zhu. Numerical study on local scour characteristics around submarine pipelines in the Yellow River Delta silty sandy soil under waves and currents. Deep Underground Science and Engineering, 2024, 3(2): 182‒196 https://doi.org/10.1002/dug2.12068

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